Get the latest international news and stories on Bitcoin, which is an innovative payment system and cryptocurrency, released in 2009 as the world’s first decentralized digital currency. Bitcoin transactions aren’t supervised by a central bank, instead it uses blockchain. Visit RT.com for opinion and economic analysis of the Bitcoin payment system and cryptocurrencies in general from the leading experts. As bitcoin is quite a controversial currency, check the latest updates and breaking news on the payment system from all over the world. See latest news and updates on Bitcoin price dynamics and find out more about other cryptocurrencies.